@import url('/css/fonts.css');

:root {
  --nreb-bg: #F7F6F2;
  --nreb-surface: #FFFFFF;
  --nreb-surface-alt: #EFECE4;
  --nreb-ink: #141A21;
  --nreb-muted: #4A5564;
  --nreb-indigo: #0F2744;
  --nreb-indigo-soft: #E8EEF5;
  --nreb-amber: #B45309;
  --nreb-amber-soft: #FEF3C7;
  --nreb-danger: #991B1B;
  --nreb-danger-soft: #FEE2E2;
  --nreb-ok: #166534;
  --nreb-ok-soft: #DCFCE7;
  --nreb-border: #D8D3C8;
  --nreb-rule: #1E293B;
  --editorial-width: 76rem;
  --reading-width: 49rem;
  --font-display: 'Besley', Georgia, serif;
  --font-sans: 'Albert Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Overpass Mono', ui-monospace, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--nreb-bg);
  color: var(--nreb-ink);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--nreb-indigo);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--nreb-amber);
}

.nreb-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--nreb-amber);
  color: #FFFFFF;
  padding: 0.6rem 1rem;
  font-weight: 600;
  z-index: 1000;
}

.nreb-skip:focus {
  left: 1rem;
  top: 1rem;
}

.nreb-container {
  max-width: var(--editorial-width);
  margin: 0 auto;
  padding: 0 2.25rem;
}

/* Header & Navigation */
.nreb-header {
  background: var(--nreb-indigo);
  color: #FFFFFF;
  border-bottom: 3px solid var(--nreb-amber);
}

.nreb-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
  flex-wrap: wrap;
}

.nreb-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.65rem;
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nreb-brand-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: #FDE68A;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nreb-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  align-items: center;
}

.nreb-nav a {
  color: #E2E8F0;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}

.nreb-nav a:hover,
.nreb-nav a[aria-current="page"] {
  color: #FFFFFF;
  border-bottom-color: #F59E0B;
}

/* Breadcrumbs */
.nreb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--nreb-muted);
  margin: 1.5rem 0 0.75rem;
}

.nreb-breadcrumb a {
  color: var(--nreb-muted);
  text-decoration: none;
}

.nreb-breadcrumb a:hover {
  color: var(--nreb-indigo);
  text-decoration: underline;
}

/* Main Editorial Grid */
.nreb-main {
  padding: 2rem 0 4rem;
}

.nreb-prose {
  max-width: var(--reading-width);
}

.nreb-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.25rem;
  align-items: center;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--nreb-border);
  margin-bottom: 2.25rem;
}

.nreb-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--nreb-amber);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.6rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--nreb-ink);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.85rem, 3.2vw, 2.65rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.55rem;
  margin: 2.4rem 0 0.85rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--nreb-border);
}

h3 {
  font-size: 1.18rem;
  margin: 1.5rem 0 0.5rem;
}

.nreb-lead {
  font-size: 1.1rem;
  color: var(--nreb-muted);
  margin: 0 0 1.25rem;
}

.nreb-figure {
  margin: 0;
  background: var(--nreb-surface);
  border: 1px solid var(--nreb-border);
  padding: 0.5rem;
}

.nreb-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.nreb-figcaption {
  font-size: 0.8rem;
  color: var(--nreb-muted);
  padding: 0.55rem 0.25rem 0.2rem;
}

/* Link-Free Answer Capsule (GEO SEO-33) */
.answer-capsule {
  background: var(--nreb-surface);
  border-left: 4px solid var(--nreb-indigo);
  border-top: 1px solid var(--nreb-border);
  border-right: 1px solid var(--nreb-border);
  border-bottom: 1px solid var(--nreb-border);
  padding: 1.15rem 1.35rem;
  margin: 1.25rem 0 1.75rem;
  max-width: var(--reading-width);
}

.answer-capsule-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--nreb-indigo);
  margin: 0 0 0.4rem;
}

.answer-capsule p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--nreb-ink);
}

.capsule-source {
  font-size: 0.82rem;
  color: var(--nreb-muted);
  margin: -1.1rem 0 1.75rem;
  max-width: var(--reading-width);
}

/* Pillar & Index Grids */
.nreb-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem;
  margin: 1.5rem 0;
}

.nreb-card {
  background: var(--nreb-surface);
  border: 1px solid var(--nreb-border);
  padding: 1.35rem 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.nreb-card h3 {
  margin-top: 0.25rem;
}

.nreb-card-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--nreb-amber);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Booktabs Quantitative Tables (SEO-38 Safe) */
.table-responsive-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  background: var(--nreb-surface);
  border: 1px solid var(--nreb-border);
}

.nreb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

.nreb-table caption {
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1rem 0.6rem;
  color: var(--nreb-ink);
}

.nreb-table thead th {
  display: table-cell;
  background: var(--nreb-indigo-soft);
  color: var(--nreb-indigo);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-top: 2px solid var(--nreb-rule);
  border-bottom: 1.5px solid var(--nreb-rule);
  vertical-align: bottom;
}

.nreb-table tbody td {
  display: table-cell;
  padding: 0.72rem 1rem;
  border-bottom: 1px solid var(--nreb-border);
  vertical-align: top;
}

.nreb-table tbody tr:last-child td {
  border-bottom: 2px solid var(--nreb-rule);
}

.nreb-mono {
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

/* Inline Pedagogical SVG Frame */
.nreb-svg-frame {
  background: var(--nreb-surface);
  border: 1px solid var(--nreb-border);
  padding: 1rem;
  margin: 1.5rem 0;
  overflow-x: auto;
}

.nreb-svg-frame svg {
  width: 100%;
  height: auto;
  max-width: 820px;
  display: block;
  margin: 0 auto;
}

/* Interactive Workbench / Checklist */
.nreb-workbench {
  background: var(--nreb-surface);
  border: 1.5px solid var(--nreb-indigo);
  padding: 1.5rem;
  margin: 2rem 0;
  max-width: var(--reading-width);
}

.nreb-workbench-head {
  border-bottom: 1px solid var(--nreb-border);
  padding-bottom: 0.85rem;
  margin-bottom: 1.15rem;
}

.nreb-workbench-head h3 {
  margin: 0 0 0.35rem;
}

.nreb-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.nreb-field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--nreb-indigo);
}

.nreb-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--nreb-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230F2744' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  border: 1px solid var(--nreb-border);
  padding: 0.6rem 2.2rem 0.6rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--nreb-ink);
  min-height: 44px;
  cursor: pointer;
}

.nreb-check-list {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.nreb-check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  background: var(--nreb-bg);
  border: 1px solid var(--nreb-border);
  padding: 0.65rem 0.85rem;
  min-height: 44px;
  cursor: pointer;
}

.nreb-check-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--nreb-indigo);
  background: #FFFFFF;
  margin: 0.15rem 0 0;
  cursor: pointer;
  position: relative;
}

.nreb-check-item input[type="checkbox"]:checked {
  background: var(--nreb-indigo);
}

.nreb-check-item input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #FFFFFF;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.nreb-result-box {
  padding: 1.1rem 1.2rem;
  border-left: 4px solid var(--nreb-indigo);
  background: var(--nreb-indigo-soft);
}

.nreb-result-box.status-safe {
  border-left-color: var(--nreb-ok);
  background: var(--nreb-ok-soft);
}

.nreb-result-box.status-urgent {
  border-left-color: var(--nreb-amber);
  background: var(--nreb-amber-soft);
}

.nreb-result-box.status-critical {
  border-left-color: var(--nreb-danger);
  background: var(--nreb-danger-soft);
}

.nreb-result-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 0.45rem;
}

.nreb-result-list {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

/* Silent Historical Disclosure Details */
.ref-disclosure {
  margin: 2rem 0;
  max-width: var(--reading-width);
  background: var(--nreb-surface-alt);
  border: 1px solid var(--nreb-border);
  padding: 0.85rem 1.15rem;
}

.ref-disclosure summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--nreb-indigo);
}

.ref-disclosure-body {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--nreb-muted);
}

/* Clean 3-Part Institutional Footer (SEO-39 Compliant) */
.nreb-footer {
  background: var(--nreb-surface);
  border-top: 2px solid var(--nreb-indigo);
  padding: 2.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--nreb-muted);
}

.nreb-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.75rem;
}

.nreb-footer-title {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--nreb-ink);
  margin: 0 0 0.65rem;
}

.nreb-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

.nreb-footer a {
  color: var(--nreb-muted);
  text-decoration: none;
}

.nreb-footer a:hover {
  color: var(--nreb-indigo);
  text-decoration: underline;
}

.nreb-footer-bottom {
  border-top: 1px solid var(--nreb-border);
  padding-top: 1rem;
  font-size: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

@media (max-width: 820px) {
  .nreb-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--nreb-amber);
  color: #FFFFFF;
  padding: 0.6rem 1rem;
  font-weight: 600;
  z-index: 1000;
}

.nreb-skip:focus {
  left: 1rem;
  top: 1rem;
}

.nreb-container {
    padding: 0 1.25rem;
  }
  .nreb-hero,
  .nreb-grid-2,
  .nreb-footer-grid {
    grid-template-columns: 1fr;
  }
}